JP3133349B2 - Injection type driving method of roller conveyor and its driving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for driving a roller conveyer for conveying articles by rotating a roller by using a jetting force of a compressed gas blown into a rotor.

[0002]

2. Description of the Related Art Conventionally, on a roller conveyor, articles are conveyed by rotating the rollers integrally with the spindles by fitting the rollers to a plurality of spindles rotatably supported by bearings on a frame using bearings. There is a type in which a large number of divided rollers are loosely fitted to each support shaft, and the rollers are rotated by frictional engagement between the rotating shaft and the rollers.

[0003] By the way, as a driving means for driving the rollers in these roller conveyors, a large number of rotatably supported spindles are rotated and driven by the driving force of a motor using bearings on a frame, and The article is conveyed by rotating a roller attached to the support shaft.

In order to transmit the driving force of a motor as a driving source to a spindle, a belt, a chain, a pulley,
The shaft was rotated by transmitting the rotation from the motor using a power transmission component such as a sprocket.

[0005]

The above-mentioned conventional driving means using a motor as a driving source uses power transmission parts such as a chain, a sprocket, a belt, and a pulley to transmit a driving force from the motor to a spindle. Since it transmits torque, the transmission loss of the driving force is generated, and the power transmission parts are worn out. Therefore, these power transmission parts need to be replaced and replenished. A lot of trouble and cost were required.

Also, in order to convey articles at a high speed by increasing the conveying speed, the capacity of the motor must be increased. Therefore, the size of the motor is increased, the equipment cost is increased, and a large installation area is required for mounting the frame. The entire conveyor was becoming larger.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and among them, as a specific invention, a method for driving a roller conveyer by means of an injection driving method, a number of which are frameless.
Fixing the roller support shaft rotatably arranged in the beam Surukama
Or a large number of divided rollers are attached by loosely fitting , and inside the shaft end of the support shaft,
Providing an air supply hole formed to a length approximately reaching the roller ,
A rotor is integrally connected or loosely fitted to the outer periphery of the end of the support shaft, and is attached to each rotor in the longitudinal direction of the support shaft.
A compressed gas is pumped into a pressure receiving hole having a cross section in a substantially elliptical cross section, and the support shaft is centered on a side surface of the rotor.
Compressed gas is tangentially injected from the symmetrically provided injection holes
The roller is driven in such a manner as to rotate and drive the roller.

[0008] Also, as a related invention as an apparatus, there are many books.
A support shaft but which is rotatably arranged in the frame, a solid to support shaft
Fixed or a large number of divided and loosely fitted rollers and an air supply hole inside the support shaft.
Formed to a length almost reaching the rollers that contribute to the conveyance of paper
And is attached to the support shaft integrally or by loose fit, and sufficiently reduces the pressure of the compressed gas from the air supply hole of the support shaft.
The cross-sectional shape in the direction crossing the longitudinal direction of the support shaft is approximately long so that it can receive pressure
A circular pressure receiving hole is provided inside, and an injection hole communicating with the pressure receiving hole is connected equidistantly about a spindle.
And a rotor provided symmetrically to each other in the linear direction, and the roller is rotated and driven by injecting compressed gas from the injection hole.

[0009]

When the compressed gas is fed into the pressure receiving hole of the rotor,
Compressed gas shaft to the outside from the ejection hole communicating with the pressure receiving hole
, The rotor attached to the support shaft is rotated by the reaction force. The rollers which are integrally connected to the support shaft or are loosely fitted are rotated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention as a specific invention will be described below with reference to FIGS.
FIG. 2 is a sectional view showing an embodiment of the roller conveyor used in the present invention. In FIG. 2, reference numeral 1 denotes a large number of spindles rotatably arranged side by side on bearings 3 provided on left and right side plates 2a and 2b of the frame 2 facing each other.
A roller 4 having a substantially cylindrical shape is rotatably fitted to each of them. Reference numeral 5 denotes a rotor which is loosely fitted at a desired position of the support shaft 1, for example, near the shaft end, with a close contact with the roller 4 so as to sufficiently maintain an airtight state.

In FIGS. 1, 2, 4 and 5, the rotor 5 is made of plastic, and a mounting hole 6a into which the support shaft 1 is airtightly inserted is provided substantially at the center thereof. A pressure receiving hole 6b, which is pressure-fed from the air supply hole 1a around the axis of the support shaft 1, is provided inside the hole adjacent to the hole 6a. The rotor body 6 having a substantially rectangular parallelepiped outer shape provided with a required number of, for example, two injection holes 6c, 6c in a tangential direction, and the pressure receiving hole portion 6b is closed, and is mounted substantially at the center. The cover part 7 having the hole 7a is formed in two. And the rotor main body 6 is located on the shaft end side of the spindle 1,
The lid component 7 is disposed on the side facing the roller 4.
The pressure receiving hole portion 6b has a cross-sectional shape in a direction crossing the longitudinal direction of the support shaft 1 so as to sufficiently receive the pressure of the compressed gas from the air supply hole 1a of the support shaft 1 and facilitate rotation about the support shaft 1. Are formed in a substantially oval shape. The injection hole 6c is formed to have a small diameter in order to inject the compressed gas in a vigorous manner and apply a sufficient reaction force to the rotor 5 to rotate the rotor 5.

Reference numeral 8 denotes a plurality of screw holes corresponding to the rotor body 6 and the lid part 7 for connecting the rotor body 6 and the lid part 7 of the rotor 5 at appropriate places. 6
d, 7b are several bolts as fastening parts to be inserted, and the bolt head 8a of the bolt 8 is rotated by engaging with the engaging recesses 4a, 4a provided at the opposite end of the roller 4. The rotational force of the rotor 5 is transmitted to the roller 4 facing the rotor 5.

The support shaft 1 is formed in a substantially cylindrical shape by stainless steel, and communicates with the pressure receiving hole 6b in the rotor 5 through a through hole 1b provided in a radial direction in one shaft end. The rollers contributing to the article conveying path surface
The air supply hole 1a of a desired length formed to a small extent is provided in the axial direction with an open end (see FIG. 2).

2 and 3, the roller 4
A plastic substantially cylindrical roller body 4A rotatably inserted into the support shaft 1 via a bearing component 9 such as a bearing, and an outer periphery of the roller body 4A according to an article to be conveyed as necessary. And a protection cylinder 4B which is formed in a substantially cylindrical shape by a thin metal plate which is fitted into the protection cylinder 4B.

1 and 2, the bearings 3, 3
Are plastic bearing bars 10, 10 which are detachably fitted to standing pieces 2c, 2c which are bent and raised substantially in an L-shape inside the side plates 2a, 2b of the frame 2, and these bearings. A large number of bars are provided on the upper surfaces of the bars 10, 10 so as to be removably fitted into substantially half-shaped accommodation recesses 10a provided at predetermined intervals, and the left and right shaft ends of the support shaft 1 are rotatably inserted and supported. A substantially cylindrical bushing 11 is formed. 10b
Is a groove formed in the longitudinal direction of the lower surface of the bearing bar 10 so that the bearing bar 10 is fitted to face the upstanding pieces 2c, 2c of the side plates 2a, 2b.

In FIG. 2, reference numeral 12 denotes a plurality of spindles 1 for compressing gas such as compressed air sent by a pump (not shown).
The air supply main pipe is disposed at an appropriate position, for example, on the lower side surface of the frame 2 along the longitudinal direction so as to be pressure-fed into the air supply hole 1a. In order to pressurize the compressed gas from the main air supply pipe 12 into the air supply hole 1a, a plurality of air distribution pipes 13 provided on the upper surface of the main air supply pipe 12 and a joint 14 rotatably mounted on the air distribution pipe 13 are provided. Part 1 for connecting the joint 14 and the air supply hole 1a of the spindle 1
5, the compressed gas passes through the air supply main pipe 12, the air distribution pipe 13, and the joint 14 in order, and is pressure-fed into the pressure receiving hole 6 b of the rotor 5. 16 is the spindle 1
This is a substantially short cylindrical stop part which is fitted to the support shaft 1 as necessary to fill the empty space.

One embodiment of the roller conveyor driving device as a related invention has the above-described configuration. Hereinafter, an embodiment of the specific invention will be described together with its operation. First, as a first step, a compressed gas is supplied from the supply main pipe 12 by a pump (not shown).
Many air distribution pipes 13, joints 14, joint parts 15
Through a plurality of support shafts 1 rotatably mounted on the frame 2 through the air supply holes 1a provided in the shaft ends. Air supply hole 1
The compressed gas which has been pressure-fed into the rotor a is loosely fitted from the through hole 1b to the support shaft 1 with a degree of tightness that maintains airtightness.
(See FIGS. 1 and 2).

Next, as a second step, the compressed gas is vigorously injected from the injection holes 6c, 6c communicating the pressure receiving hole 6b of the rotor 5 with the outside.
The support shaft 1 is rotated in the direction of arrow A in FIG. 1 by the reaction force when the compressed gas is injected from c and 6c. At this time, since the pressure receiving hole 6b provided in the rotor 5 has a substantially oval cross section in the direction intersecting with the axial direction of the support shaft 1, compressed gas is injected from the injection holes 6c. And a sufficient pressure is applied to the rotor 5 through the pressure receiving hole 6b, so that the rotor 5 is smoothly rotated. In this manner, the respective rotors 5 attached to the multiple spindles 1 mounted on the frame 2 are rotated. Moreover, the injection holes 6c,
6c is formed in the tangential direction at substantially the same distance from the support shaft 1 as the center, so that the rotation of the rotor 5 is further smoothed by the couple force.

A bolt head 8a of several bolts 8 as fastening parts for connecting the rotor body 6 of the rotor 5 and the lid part 7 has a bearing part 9 such as a bearing on the support shaft 1. Since the roller 4 is engaged in an engagement recess 4 a provided at the opposite end of the roller 4 rotatably mounted using the roller 4, the roller 4 faces the bearing by passively receiving the rotational driving force from the rotor 5. It rotates around a support shaft 1 that supports both ends rotatably at 3,3. Thus, the rotor 5 attached to each spindle 1 rotates, and the roller 4 attached adjacent to each spindle 1 rotates in cooperation therewith.
The articles placed on the rollers 4 are transported.

In this case, the rotational speed of the rotor 5 and the roller 4 can be adjusted rapidly and widely by adjusting the pressure of the compressed gas from the air supply main pipe 12, and the rotational torque of the roller 4 can be increased or decreased. Can be. At this time, by providing an electromagnetic valve (not shown) in the middle of the air distribution pipe 13, the rotation speed and the rotation torque of the rotors 5 and the rollers 4 of the respective support shafts 1 are automatically controlled as appropriate. Can be.

If the location of the injection hole 6c provided on the side surface of the rotor 5 is provided on the opposite surface on the opposite side, the rotation direction of the rotor 5 can be reversed.

Further, the diameter of the roller 4 which engages with the engaging concave portion 4a of the rotor 5 and is smaller than that of most of the other rollers 4 is about one third of the bottom length of the article. To form one or two rollers 4 having a small diameter.
When used in combination with most of the other large-diameter rollers 4, the rotation of the small-diameter roller 4 prevents the dropping of the articles without being involved in the conveyance of the articles, and the large-diameter rollers 4 The article can be transported by the rotation of 4.

FIG. 6 is a sectional view showing an embodiment of a conveyor driving device according to another related invention. In this embodiment, the rotor 5 attached to the support shaft 1 is fitted and attached to one end of the support shaft 1 and the roller 4 is fitted to and attached to the support shaft 1 so that the inside of the air supply hole 1a of the support shaft 1 is formed. When the compressed gas which is pressure-fed from the air supply main pipe 12 is pressure-fed into the pressure receiving hole 6b of the rotor 5, the compressed gas is discharged from the injection holes 6c, 6c communicating the pressure receiving hole 6b of the rotor 5 and the outside. Since the rotor 5 is jetted vigorously, the rotor 5 is rotated integrally with the support shaft 1 rotatably supported by the bearings 3 and 3 facing each other.
At this time, since the roller 4 fitted on the support shaft 1 is rotated integrally with the rotor 5, the bolt head 8 a of the bolt 8 as a fastening part is not necessarily engaged with the engaging recesses 4 a, 4 at the opposite end of the roller 4.
It is not necessary to engage the inside of a, and the rotation from the rotor 5 can be passively applied to the roller 4 via the support shaft 1, which has an operation different from that of the above-described embodiment of the related invention.

FIG. 7 shows a third embodiment of the present invention. In this embodiment, a roller for tightly fitting a rotor 5 to a support shaft 1 as a rotation shaft and attaching the rotor 5 to the support shaft 1 is shown. Unlike the previous embodiment, the rotor 5 mounted on the shaft end of the support shaft 1 is divided into a large number and is loosely fitted into the injection hole 6c. , 6c and the rotor 5
, And the spindle 1 that rotates integrally with the rotor 5
The present invention is different from the above-described embodiments in that articles are conveyed by rotating a large number of rollers 4 which are divided by friction and engagement force.

As shown in FIGS. 1, 4 and 5, the outer shape of the rotor 5 in each of the embodiments of the present invention is formed in a substantially rectangular parallelepiped. Without limitation, any shape such as a square, hexagon, column, and sphere is included.

In the above embodiment, the pressure receiving hole 6b provided inside the rotor 5 is formed to have a substantially rectangular cross section in order to increase the pressure received by the blast gas from the rotor 5. The shape of the portion 6b is not limited to this, and the rotor 6 may be formed into a shape that is light in weight and large in pressure received by the rotor 5 to be easily rotated. Further, in the above embodiment, the installation direction of the injection holes 6c provided on the outer periphery of the rotor 5 is two in the tangential direction as shown in FIG. 4, but the installation direction is not limited to this, and The number of the injection holes 6c is not limited to two as in the above-described embodiment, and the number of the injection holes 6c can be freely increased or decreased. In short, the rotor 5 is rotated by the reaction force of the compressed gas injected from the injection holes 6c. What should I do?

Further, the rotor 5 of the above embodiment is formed into two parts formed by the rotor main body 6 and the lid part 7, and the rotor body 6 and the lid part 7 are fixed by bolts 8 as fastening parts.
Although the production and processing are facilitated by combining the above, the rotor body 6 and the lid part 7 may be integrally produced and processed if molding and processing are possible. Further, in each embodiment of the above specified invention and related invention, the bolt head 8a of the bolt 8 as a fastening part is engaged with the engagement recess 4a provided at the opposite end of the roller 4 so that the rotor 5 is connected to the rotor 5. An engaging portion with the roller 4 is formed. As the engaging portion, a protrusion is provided on the roller 4 as in the above embodiment, and a concave portion on which the protrusion can
May be provided on the rotor 5 or the roller.

[0028]

As described above, according to the present invention, the inside of the rotor attached to the outer periphery of the end of the support shaft is provided in the direction crossing the longitudinal direction of the support shaft.
Sufficient pressure should be applied to the pressure receiving hole with a substantially oval cross section.
Compressed gas that is press-fitted to receive pressure is contacted from the injection hole of the rotor.
The rotor is centered on the spindle by the reaction force when injecting in the linear direction.
The article can be conveyed by efficiently transmitting the rotation driving force of the rotor to the roller without transmission loss and rotating. In addition, by adjusting the pressure of the compressed gas press-fitted into the pressure receiving hole in the rotor, the rotation speed of the rotating body can be easily and slowly adjusted, and the rotation direction and the rotation torque of the roller can be freely controlled. .

Further, the roller can be rotated by the rotation of a rotor as a rotary drive source, and the roller can be rotated without using a power transmission component such as a chain, a belt, a pulley, and a sprocket as in a conventional driving device. Therefore, the power transmission components do not wear each other, and the maintenance and management of component replacement and the like do not require much time, labor, and cost.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing one embodiment of the present invention.

FIG. 3A is a cross-sectional view showing a roller conveyor constituting the embodiment of the present invention, and FIG. 3B is a right side view of the same.

4A is a side view showing a rotor main body of the rotor constituting the above embodiment of the present invention, FIG. 4B is a front view thereof, and FIG. 4C is a center view of FIG. It is sectional drawing.

FIG. 5A is a plan view showing a lid part to be closed on a rotor main body of the rotor constituting the embodiment of the present invention,
(B) is a right side view of the same, and (C) is (A) of FIG.
FIG.

FIG. 6 is a sectional view showing another embodiment of the roller conveyor of the present invention.

FIG. 7 is a sectional view showing a third embodiment of the roller conveyor of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support shaft 1a Air supply hole 1b Through hole 2 Frame 3 Bearing 4 Roller 5 Rotor 6 Rotor main body 6a Mounting hole 6b Pressure receiving hole 6c Injection hole 7 Cover part 8 Bolt 8a Bolt head 9 Bearing part 10 Bearing bar 10a Housing recess 11 bushing 12 air supply main pipe 14 joint 15 joint parts

Claims (4)

(57) [Claims] 1. A large number of tubes are rotatably arranged side by side on a frame.
That or multiple spindle to secure the roller, divided b
And the inside of the shaft end of the support shaft.
Long enough to reach the rollers that contribute to the transport of goods
The rotor is integrally connected or loosely fitted to the outer periphery of the end of the support shaft, and is provided in each of the rotors in the direction crossing the longitudinal direction of the support shaft. Cross-sectional shape is almost
The roller is formed by injecting the compressed gas into the pressure receiving hole formed in an oval shape and injecting the compressed gas in a tangential direction from an injection hole provided symmetrically on the side surface of the rotor at an equal distance around the support shaft. rotation, jet driving method of the roller conveyor is characterized in that drive. 2. A large number of tubes are rotatably juxtaposed on a frame.
That the support shaft and, or multiple fixed to support shaft, divided by Yu
A roller mounted by fitting , and
In this part, the air supply hole almost reaches the roller that contributes to the conveyance of the article.
The support shaft is formed to have a desired length, is integrally attached to the support shaft or is attached by loose fit, and has a pressure from an air supply hole of the support shaft.
Cross the longitudinal direction of the spindle so that the pressure of compressed gas can be sufficiently received.
A pressure receiving hole portion having a substantially elliptical cross section in the direction is provided inside, and an injection hole communicating with the pressure receiving hole portion is supported by a support shaft.
A rotator provided equidistantly in the tangential direction as a center, and the rollers are rotated and driven by injecting compressed gas from the injection holes. Roller conveyor injection drive. 3. The method according to claim 1, further comprising: transmitting the rotation from the rotor to the roller by engaging the rotor with a roller facing the rotor via an engagement portion to rotate and drive the roller. 3. The injection driving device for a roller conveyor according to claim 2, wherein: 4. A protruding head of a fastening component for fastening the engaging part to the rotor body of the rotor and a lid component, and an opposing end of the roller so that the fastening head is engageable. The injection driving device for a roller conveyor according to claim 3, wherein the driving device is formed by an engagement recess provided.